Greenbox Architecture is a boutique design firm with architects licensed in California, Hawaii, Nevada, Oregon, and Washington. The practice was started with the vision of providing better services to those in the cannabis industry. We continue that focus today through our commitment to quality and excellence. Our studio provides professional design services while meeting complex laboratory challenges that are inherent to the nature of our clients’ needs. We offer integrated solutions that incorporate mechanical, electrical and plumbing designs. We design BHO & CO2 laboratories. We have designed production facilities (Grow Rooms) from 4,000 – 200,000 sf.


We specialize in cannabis projects. We have a unique understanding of the regulations and jurisdictional requirements to successfully navigate a cannabis project to its completion.


We offer expedited services to meet our clients’ demanding schedules. We understand the importance of growing cycles and time-to-market demands.


We are a full-service design firm from planning to permitting and oversight throughout construction to ensure timely and proper completion of your site.


We have been in this business for many years and have completed dozens of cannabis projects in various states. We are knowledgeable and experienced with a number of municipalities.


architecture land use icon

Land Use & Planning

  • • Site Plan Design
  • • Zoning & Code Summary Reports
  • • Process & Jurisdictional Guidance
  • • OLCC & Other State Compliance Assistance

Cannabis architect, Cannabis Design


  • • Cultivation (Grow Rooms)
  • • Laboratory Design
  • • Distillate Lab Design
  • • Hydrocarbon Extraction Room Design
  • • Engineering Compliance Review
  • • Technical Opinion (414) Reports
  • • BHO Extraction Lab
  • • CO2 Extraction Lab
  • • General Equipment & Lab Workflow Consultation
  • • Stamped Construction Drawings
  • • Construction Administration
  • • Dispensary Design
  • • Rendering & Visualization
  • • Tray Layouts

Mechanical Engineering

Mechanical Engineering

  • • Central Heating & Cooling Plants
  • • Ductwork Optimization
  • • Filtration Systems
  • • Exhaust Systems
  • • Humidity Controls

Electrical Engineering

Electrical Engineering

  • • Lighting Design
  • • Power Design
  • • Low Voltage
  • • Grow Lighting Design
  • • Street Lighting
  • • Telecommunications
  • • Life Safety
  • • Security Design
  • • Access Control
  • • Site Utilitiestors

Plumbing Engineering

Plumbing Engineering

  • • Plumbing Design
  • • Utility & Water Systems
  • • Water Treatment Systems
  • • Piping Plumbing & Vacuum Systems
  • • Sewage & Waste Disposal Systems
  • • Irrigation Design
  • • Gas Piping Design
  • • Grease Waste Systems
  • • Irrigation System Water Supply
  • • Irrigation Disposal/Reclamation


  • 01


    Greenbox works closely with all local and state officials in the land use planning and preliminary design phases to achieve licensing. We provide supporting information such as security plans, premises sketches, site development review application material assistance with.

  • 02


    Our team will work with you and your stakeholders to determine your goals and to design a facility that meets your needs that is efficient and well constructed.

  • 03


    We provide oversight during the construction phase and effectively communicate and coordinate with you and your contractor to answer any questions that may arise.

  • 04


    As your business expands, Greenbox is there to help your business grow to the next level.


Grow room Design

Greenbox Architecture has teamed with large hi-tech manufacturers and biotech companies to produce sophisticated research and development laboratory’s. Our work has included research and development labs as well as clean rooms for manufacturing. This depth of experience paralleled and complemented the skill set required to design sophisticated cultivation and processing facility’s. To date, we have engaged in the planning and design of dozens of facilities ranging from startup operations to 200,000 square feet. Our architects are familiar with non-listed extraction equipment BHO & CO2 extraction room design, post-extraction refinement & various concentrates & manufacturing processes. We will assist in the design process from trim storage to warehousing & shipping along with everything in between.


Cannabis Architect

Derek Metson

Architect, Owner

Derek Metson is an award winning architect. Working collaboratively to create dynamic and thoughtful spaces that address specific needs while respecting his clients' budgets and timelines. He values design excellence, technical expertise, and sustainable practices.

Mechanical Designer

David Keys

Mechanical Designer

David has over 23 years of HVAC and plumbing design experience as well as extensive corporate design. He is familiar with developing applications for tax/LEED credits and energy studies.

Electrical Engineer

Charles Evans

Electrical Engineer

Charles Evans, PE has been working in the built environment for over 20+ years as an electrician, facility maintenance manager, and professional engineer.




502 7th Street Suite 203
Oregon City, Oregon 97045